Look Up DNS Records
Query DNS records for any domain to inspect A, AAAA, MX, CNAME, TXT, and NS configurations.
Infrastructure Health Check
Verify DNS resolution, service availability, and server locations to ensure infrastructure is healthy and correctly configured.
Infrastructure misconfigurations often go undetected until they cause outages or security incidents. A regular health check catches DNS propagation issues, service degradation, unexpected hosting changes, and configuration drift before they impact users or create security vulnerabilities.
This workflow verifies DNS resolution health and record consistency, probes all services for availability and performance, and confirms that servers are located in expected geographic regions. It is designed for routine infrastructure monitoring and is especially valuable after DNS changes, migrations, or CDN reconfigurations.
Steps
1
Verify DNS Resolution
Check DNS resolution health, TTL values, and record consistency across nameservers to ensure reliable service delivery.
Input: Domain and subdomains to verify DNS health for.
Output: DNS resolution status, TTL values, record consistency across nameservers, and propagation issues.
2
Probe Service Availability
Check HTTP/HTTPS service availability, response times, status codes, and technology stack across all endpoints.
Input: Hosts and endpoints to probe for service health.
Output: Service availability status, response times, HTTP status codes, and detected technologies.
3
Verify Server Locations
Confirm server geographic locations match expected deployment regions and identify any unexpected hosting changes.
Input: IP addresses resolved from DNS lookups.
Output: Geographic location, ISP, ASN, and hosting provider details for each IP address.
Benefits
- Catch DNS misconfigurations before they cause outages
- Monitor service availability and response times across endpoints
- Detect unexpected server location changes that may indicate compromise
Related Use Cases
Check DNS Propagation Status
Verify whether recent DNS changes have propagated and the new records are live.
Probe Security Headers
Check HTTP security headers across your web properties to identify missing protections like CSP, HSTS, and X-Frame-Options.
Discover Hidden Services
Find hidden or forgotten web services running on your infrastructure that may be exposed without your knowledge.
Geolocate Website Visitors
Determine the geographic location of website visitors from their IP addresses for analytics and personalization.
Detect Suspicious Login Locations
Flag logins from unexpected geographic locations by comparing IP geolocation against known user patterns.